Scalpellum striatum Gruvel, 1900

Young, Paulo S., 2002, Revision of the Scalpellidae (Crustacea, Cirripedia) in the collection of the Muséum national d’Histoire naturelle, France, studied by Abel Gruvel, Zoosystema 24 (2), pp. 309-345 : 338

Scalpellum striatum Gruvel, 1900 (junior synonym of Amigdoscalpellum rigidum [Aurivillius, 1898])

( Fig. 26A )

Scalpellum striatum Gruvel, 1900a: 191 ; 1902a: 77, 133, pl. 2, fig. 3I, pl. 4, figs 3, 5, 7, 8; 1902c: 246; 1902d: 523; 1905: 72, fig. 81; 1920: 23, pl. 2, figs 4- 6, 9-11, pl. 7, fig. 11. — Belloc 1959: 3.

TYPE MATERIAL. — East of Azores, Talisman, 1883 , drag. 131, 2995 m, lectotype by present designation, cl (tl) 28.3 (36.0) mm ( MNHN Ci 381) ; paralectotype, 1 spec., cl (tl) 26.6 (35.6) mm ( MNHN Ci 380). MATERIAL EXAMINED. — No locality, 1 spec., cl (tl) 41.6 (53.8) mm ( MNHN Ci 394) .

REMARKS

This species was described by Gruvel (1900a). However, he later ( Gruvel 1920) considered it a synonym of Amigdoscalpellum rigidum (Aurivillius, 1898) , but he continued using the name S. striatum . Afterwards several authors turned to use A. rigidum as the valid name ( Zevina 1976, 1981a; Young 1998a), except Nilsson-Cantell (1955). The lectotype of this species is herein figured ( Fig. 26A ). When the type specimens of S. curvatum , S. talismani and S. striatum are examined, there are no doubts that all are the same species, only being distinct by stages of growth. During capitular plate growth, the inframedian-latus becomes proportionally smaller and the cuticular spaces between the capitular plates enlarge, especially the space between the carina and tergum.

Scalpellum alatum Gruvel, 1900

Figures

FIG. 26. — A, Scalpellum striatum Gruvel, 1900, lectotype (MNHN Ci 381), right lateral view; B, Arcoscalpellum curvatum (Gruvel, 1900), holotype (MNHN Ci 383), right lateral view; C, Amigdoscalpellum talismani (Gruvel, 1900), holotype (MNHN Ci 391), right lateral view. Scale bars: A, C, 5 mm; B, 3 mm.